0425ebefe7
Cleaned up the current snippets for consistency and minor problems, added multiple tags to most of them, archived a few.
20 lines
495 B
Markdown
20 lines
495 B
Markdown
### flip
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Flip takes a function as an argument, then makes the first argument the last.
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Return a closure that takes variadic inputs, and splices the last argument to make it the first argument before applying the rest.
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```js
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const flip = fn => (...args) => fn(args.pop(), ...args);
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```
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```js
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let a = { name: 'John Smith' };
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let b = {};
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const mergeFrom = flip(Object.assign);
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let mergePerson = mergeFrom.bind(null, a);
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mergePerson(b); // == b
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b = {};
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Object.assign(b, a); // == b
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```
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